Added bindings to member variables
Start work on #18 by adding check for method calls without specified parent
Cleanup debug statements and activate evaluation
Make methods return final term, not list
Merge branch 'master' of https://github.com/landakram/hopper
Merge branch 'master' into working

Conflicts:
	grace/lang/typecheck.rkt
Remove evaluation
Add parent tracking in objects to fix #18. Yet to add keyword outer
Remove difftool file
Merge remote-tracking branch 'upstream/master' into working
Cleanup and add test
Add notes for subtyping and continue work on subtyping.